tinyE: 1 and 2 we're great. 3 was blah. After that I lose track of the numbers but the Craig Schaffer one was okay however the internet one was total shit if for no other reason than the fact that it had NOTHING TO DO WITH HELLRAISER!
Hellraiser and Hellbound - masterpieces!
Hell on Earth - campy slasher with some nice touches (Elliot's backstory)
Bloodlines (one about origins of the box and LeMerchant family) - less campy slasher with some potential and some really lame parts)
Inferno (Craig Schaffer) - interesting new formula, but lame morality lessons in the end.
Hellseeker (one about Kirsty's husband) - nice elaboration on the new formula; really liked this one for all that crazy shit going on.
Deader - interesting, but lacks backstory for some non-Hellraiser paranormal stuff that's going on so it's a little confusing.
Hellworld (the Internet one) - all it does is insulting Hellraiser fans (like, that party is meant for hardcore Hellraiser fans and they all are idiots) and using totally impossible plot twist.
Revelation - it was made with almost no budget and it shows... but has some redeeming factors. Like, it's the first Hellraiser sequel that was written as a Hellraiser story from the very beginning since Bloodlines :)
Also, you can check the first eight issues of BOOM! comic series - it's a nice conclusion for Hellraiser and Hellbound.